In our previous papers, it has been reported that when rings and shells are subjected to an internal uniformly-distributed pressure pulse, dynamic elastic buckling due to the nonlinear coupling between the breathing mode and bending modes may occur and further cause the strain growth phenomenon in explosion containment vessels. In this study, the influence of defect distribution on dynamic buckling of plane-strain rings under internal uniformly-distributed pressure pulse is studied, in which three cases with one defect, six defects and twelve defects are employed in the finite element model. It is found that defects influence the initial buckling response shapes and occurrence of dynamic buckling. However, the excited bending mode is the same for the different defect distribution cases.
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ASME 2018 Pressure Vessels and Piping Conference
July 15–20, 2018
Prague, Czech Republic
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5166-1
PROCEEDINGS PAPER
Influence of Defect Distribution on Dynamic Elastic Buckling of Rings Under Internal Uniformly-Distributed Pressure Pulse
Qi Dong,
Qi Dong
China Academy of Engineering Physics, Mianyang, China
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Sha Yang,
Sha Yang
China Academy of Engineering Physics, Mianyang, China
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Liucheng Zhang
Liucheng Zhang
China Academy of Engineering Physics, Mianyang, China
Search for other works by this author on:
Qi Dong
China Academy of Engineering Physics, Mianyang, China
Sha Yang
China Academy of Engineering Physics, Mianyang, China
Liucheng Zhang
China Academy of Engineering Physics, Mianyang, China
Paper No:
PVP2018-84041, V005T05A014; 6 pages
Published Online:
October 26, 2018
Citation
Dong, Q, Yang, S, & Zhang, L. "Influence of Defect Distribution on Dynamic Elastic Buckling of Rings Under Internal Uniformly-Distributed Pressure Pulse." Proceedings of the ASME 2018 Pressure Vessels and Piping Conference. Volume 5: High-Pressure Technology; ASME Nondestructive Evaluation, Diagnosis and Prognosis Division (NDPD); Rudy Scavuzzo Student Paper Symposium and 26th Annual Student Paper Competition. Prague, Czech Republic. July 15–20, 2018. V005T05A014. ASME. https://doi.org/10.1115/PVP2018-84041
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